Watch Prince Harry joke about his panic of 'bumping' into the Queen in Buckingham Palace

Trust the ever-cheeky and always relatable Prince Harry to admit that even he often 'panics' when he bumps into his grandmother the Queen in the corridors of Buckingham Palace.

The 34-year-old Duke of Sussex makes the admission in ITV's upcoming two-part series Queen of the World, which celebrates Her Majesty's role as a figure on the global stage and the baton she is passing to the younger members of the Royal Family as they continue to build the Commonwealth connection.

Prince Charles, the Queen and Baroness Scotland

ITV

In a clip released today by ITV, Harry can be seen laughing to Caribbean Scholars staying at Buckingham Palace: 'If you suddenly see her in the corridor, don't panic... I know you will. We all do!'

He also added: "You guys have spent more time in Buckingham Palace than I ever have, and you've been here for two weeks. I can assure you."

Eight scholars from across the Caribbean joined the Master of the Household's Department at the Palace and Windsor Castle over six weeks to help with the delivery of several Royal events.

The scholarship aims to develop individuals' skills through practical experience as well as build relationships around the Commonwealth.

Meghan Markle also features, discussing her veil which was embroidered with 53 flowers from each of the countries of the commonwealth.

'My goodness – it will keep us busy,' the Duchess of Sussex jokes in footage taken before her royal wedding to Harry in Windsor back in May.

ITV

ITV's Controller of Factual Jo Clinton-Davis previously said of the documentary: 'The Queen is a unique figure on the world stage, with a huge depth of experience having met more global leaders than any previous British monarch and serving longer than all of them.

'This film is a rare opportunity to see Her Majesty up close and behind the scenes in this role, which means so much to her and has been so significant for Britain and the Commonwealth.'

Earlier this year, Commonwealth leaders confirmed that Prince Charles would succeed the Queen as the head of the Commonwealth.

Meanwhile, the film will also draw on cine footage from the monarch's private film archives and treasures of the Royal Collection.

Behind-the-scenes moments with Prince William, the Princess Royal, and the Countess of Wessex will also feature in the series.